I don't think you're being argumentative, and I understand that many brilliant people respect him greatly as a genius. I own several discs of his music myself. I made my comment because Schubert has demeaned other music repeatedly in the past, implying that it was without musical worth. I think that this mostly applied to the rock genre.
My point is that even though some music composers have both amazing technical acuity in their compositions as well as the ability to evoke emotional responses from listeners, many composers and songwriters of much more humble technical abilities are able to evoke the same emotional responses, and it is narrow minded to dismiss their work. I hope that makes my response more clear.